Software written for SARA does not work on SFF

SARA AFF
1

Hi,
I have some working software for the SARA board 410m, it connects to UK Vodafone network and gets an NB-IoT signal which is all I need at the moment.
However the same software compiled for the SFF 410m does not work, it connects to the network but cannot find NB-IoT ( AT+CSQ returns 99,99)

Has anyone else had this experience / have any ideas?
Could it be a bad batch of MODEMs? The two SFF boards I have, have the same code on the top of the label.
Is it possible the MODEM firmware could be out of date and therefore the cause?

Notes:
None of the example programs seem to work for me on the SARA or the SFF boards, so I have written my own software for the SARA using the AT commands necessary to connect and get RSSI readings.
I have ensured I’m using the correct pins for the SFF, I get responses from the MODEM.

Thanks

2

Hi @Rmckay,

The examples are compatible with the latest version of the modem firmware.
The firmware is not backwards compatible.

You can check here if you have the latest firmware:
https://support.sodaq.com/Boards/Sara_AFF/#firmware-upgrade
https://support.sodaq.com/Boards/Sara_SFF/#firmware-upgrade

Best regards,
Jan

3

Hi @Jan
I have checked and both boards are running the latest firmware.

Thanks